Hi, I've tried to search for the problem on the lists without finding a solution. I'm trying to recreate a crashed PDC system on a new system with samba 3.0.4. It is a small domain and I use tdbsam as a backend. No LDAP (yet ;). I could actually retrieve the old SIDs from a backup file, and also the smb.conf file. All other files was though lost :( I managed to give the new domain (PDC) the same SID as the previous using $ net setlocalsid <oldsid> Now I want to add previous machines into the domain. Because I know the machine SIDs I thought I could do something like this: $ adduser <mach>$ -g machines $ pdbedit -a -u <mach> -m -U S-1-5-21-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx-<rid> Using the SID from my backup. The entry is added but the SID is not the one I entered! It seams as if pdbedit uses it own mechanism, even though I enter a SID manually. Am I missing something? I actually manage to recreate users with this approach, i.e. using the SIDs from may stored file. And also, rejoining using the "Network Identification" applet in the client machine. Sincerly /norling